Concrete support for fixation of 1m-3m lightning rods in horizontal roofs. Description Installation Made in concrete. The 6.9Kg model has protective case in order to avoid making damages in structure. Easy installation. Download data sheet Concrete supports Fixation of lightning rod to concrete supports using M16 threat. Once the lightning rod is installed, the conductor can be connected to the lightning rod using a Ø16 a Ø8-10mm (not included). Referencias de producto para el Buscador General 110298 / 110297